**About the Editors**

**Clinio Locatelli** (Associate Professor, Analytical Chemistry) 1975: Degree in Chemistry from the University of Ferrara; discipline: Analytical Chemistry. 1977: Qualification to the Profession of Chemist. 1977–1980: Holder of a scholarship from the National Research Council (Rome, Italy). 1980–1992: University Researcher, Scientific-Disciplinary sector Analytical Chemistry, Department of Chemistry of the University of Ferrara. 1992–1994: Associate Professor, Scientific-Disciplinary sector Analytical Chemistry, Department of Chemistry of the University of Salerno. 1994–present: Associate Professor, Scientific-Disciplinary sector Analytical Chemistry, Department of Chemistry "G. Ciamician" of the University of Bologna. 1980–1996: Several study periods for a total of about two years at the Research Laboratory for Inorganic Chemistry of the Hungarian Academy of Sciences in Budapest (Hungary) and at the Department of Analytical Chemistry of the University of Chemical Engineering of Veszprem (Hungary). In these centers, both theoretical and application lines of research have been consolidated for some time, aimed at the possibility of carrying out voltammetric multicomponent analysis of metals, also and above all, in the presence of strong interference from the voltammetric signal. RESEARCH SUBJECTS—The research activity (author of more than 160 publications in peer-reviewed international journals, and more than 200 congress communications) is addressed to theoretical and applied problems. The main research lines are the following. – Study of adsorption processes of organic molecules and their determination at trace level. – Set up of voltammetric and spectroscopic analytical methods in the determination, at trace and ultra-trace concentration levels, of heavy metals in real complex organic and inorganic matrices, especially of environmental, food, industrial, cosmetic, and forensic types. – Theoretical survey addressing the optimization of the analytical parameters such as sensitivity, selectivity, accuracy, precision, and limits of detection in metal determination by voltammetric and spectroscopic techniques. TEACHING ACTIVITY—The teaching activity (1980 to date) has always been focused on courses related to the scientific disciplinary sector Analytical Chemistry (Analytical Chemistry, Analytical Chemistry Laboratory, Instrumental Analytical Chemistry, Environmental Analytical Chemistry). From the Academic Year 1995/96, until the end of its activation, he was teacher at the School of Specialization in "Chemical Control and Analysis Methodologies" in the course Analytical Methodologies I. Academic Years 1996/97–2001/02: Professor of "Inorganic Chemical Analysis Methods" in the Specialization Course in "Marine Pollution Control" at the Faculty of Mathematical, Physical, and Natural Sciences of the University of Bologna throughout its activation period.

**Marcello Locatelli** earned his degree in Chemistry at the University of Bologna, Department of Chemistry "G. Ciamician" with his thesis "Development of an Analytical Methodology for the Analysis and Identification of Protein Adducts by Mass Spectrometry". He earned his PhD from the University of Bologna, Department of Chemistry "G. Ciamician" with his thesis "Combined Analytical Methods of Mass Spectrometry for the Study of Impurities in Drugs and Metabolites of Biomolecules". He is currently Associate Professor of Analytical Chemistry at the University "G. d'Annunzio" of Chieti-Pescara, Department of Pharmacy. His research activity is devoted to the development and validation of chromatographic methods for the qualitative and quantitative determination of biologically active molecules in complex matrices from human and animal (whole blood, serum, plasma, bile, tissues, feces, and urine), cosmetics, foods, and the environment. This applies to the study of all processes related to preanalytical stages such as sampling, extraction and purification, separation, enrichment, and even the application of conventional and combined analytical methods for the accurate, sensitive, and selective determination of biologically active molecules. Recently, particular attention is focused on innovative (micro)extraction procedures like MEPS, FPSE, MIP, DLLME, and SULLE. These procedures have been applied to different compounds, from synthetic and natural origin (glucosamine, 5-aminosalicylic acid, natural or synthetic bile acids, anti-inflammatory agents, drug association and fluoroquinolones, secondary metabolites from natural sources, and heavy metals). In the development of methods, predictive and chemometric models are also tested both for the optimization of extraction protocols and for final data processing. Particular attention is given to new instrument configurations for the quantitative analysis in complex matrices. Locatelli is author of more than 157 manuscripts, 116 congress communications, 1 patent subject to approval, 13 book chapters, and 3 books, in addition to being Guest Editor for 13 Special Issues. His attested scientific activity based on Scopus (8th of June 2020) includes having a h-index of 33, 148 papers, and 2778 citations. In addition, he is a reviewer of the following international journals: *Analytica Chimica Acta, Current Bioactive Compounds, Journal of Chromatography A, Talanta, Trends in Analytical Chemistry* (a sample from more than 100 international peer-reviewed journals). He is a referee for MIUR Institution for National Projects (SIR) and included in the register REPRISE (Register of Expert Peer Reviewers for Italian Scientific Evaluation) in the "Basic Research" section. Locatelli served as referee for VQR (2011–2014) and is a referee for other universities of proposals through competitive tenders for the allocation of University funds for the activation of research grants. He serves on the Editorial Board of Molecules for the section "Analytical Chemistry" in addition to *Current Analytical Chemistry, Separations, "Current Bioactive Compounds, American Journal of Modern Chromatography, Journal of Selcuk University Science Faculty, Reviews in Separation Sciences, and Cumhuriyet Science Journal*. He is Associate Editor of *Frontiers in Pharmacolog*y section "Ethnopharmacology", Review Editor of Frontiers in Oncology section "Pharmacology of Anti-Cancer Drugs", and Review Editor of *Frontiers in Medical Technology* section "Nano-Based Drug Delivery". He is a member of the Scientific Committee of the journal *Scienze* e Ricerche, published by the Italian Book Association.

**Dora Melucci** obtained her Master of Science in Chemistry at the University of Bologna, with her thesis entitled "Determination of Polypeptides by HPLC". She then obtained her Master in Chemical Methodologies for Control and Analysis at the University of Bologna with a thesis entitled "The Gravitational Field-Flow Fractionation Technique (GrFFF). Fractionation and Absolute Quantitative Analysis of Particulate in Dispersion". Finally, she obtained her PhD in Chemical Sciences at the University of Ferrara with a thesis entitled "Characterization of Polymers by Means of Thermal Field-Flow Fractionation (ThFFF) Using Decalin as a Solvent". She has served as Researcher and Assistant Professor (branch Analytical Chemistry) at the Department of Chemistry "Giacomo Ciamician", School of Sciences, University of Bologna, since being appointed in 1999. Her research subjects have included the following. Separation Science: FFF of macromolecules in solution and dispersed microparticles; standardless and absolute analysis in ETA-AAS and HPLC; ThFFF of industrial polymers in collaboration with industry; flow-FFF and GrFFF of real samples (starch, yeast, and metal nanoparticles for biostatic materials); miniaturization of separation tools; cell sorting; combination of FFF with chemiluminescence; and development of multianalyte competitive immunoenzymatic methods using dispersed nano- and microparticles. In the framework of these subjects, she was Coordinator of the Local Unity of Bologna in a national project (PRIN) entitled "Microfluidic Separation of Nanosystems". She started an autonomous research line in 2005 with the basic keyword chemometrics, in which she continues to be involved. The topic is application of chemometrics to the development and validation of innovative analytical methodologies, with a focus on direct and non-altering methods of analysis. The fields of application are food, environment, pharmaceutics, forensics, biotechnology, cultural heritage. The analytical techniques employed are AAS, NIR, voltammetry, Raman, GC, LC–MS, FT-IR, XRD. Up to May 2020, her work includes 76 articles, 20 book contributions, and over 100 communications in national and international meetings, corresponding to a h-index of 17. Her teaching activity in 2002–2020 includes teaching responsibility in Analytical Chemistry, Laboratory of Analytical Chemistry, Analytical Chemistry and Law, Principles of Quality and Safety (Bachelor in Chemistry); Chemometrics (Master of Science in Chemistry); Chemometrics for Forensic Analysis (Master in Forensic Chemical and Chemical—Toxicological Analysis). Part of her additional academic roles include being Local Coordinator for the University of Bologna of the National Ministerial Project for high-school student guidance (Scientific Degrees Plan), and Department Delegate for university student tutoring.
